Acetylene-gas generator.



PATENTED AUG. 4 1908.

A. W. HANGER. 8 AGETYLENE GAS GENERATOR.

APPLICATION FILED OUT. 8, 1907.

2 SHEETS-SHEET 2.

I @lmaeuto; Z WZ' throughout the severall figures of the ALEXANDER WYTHEHANGER, OF STAUNTON, VIRGINIA.

ACE TYLE NE-GAS GENERATOR.

Specification of Letters Patent.

Iatented Aug. 4, 1908.

1 Application filed October 8, 1907. Serial No. 396,497.

To all whom it'mcy c oncern:

Be it known that-I, ALEXANDER WYTHE HANGER, a citizen of the UnitedStates, residing at Staunton, in the county of Augusta and State ofVirginia, have invented a new and useful Acetylene-Gas Generator, ofwhich the following is a specification:

This invention relates to acetylene gas generators, and has for itsprincipal object to provide an improved means for controlling the supplyof carbid from the carbid tank to the generatingtank.

A further object of the invention is to provide a valve mechanism ofsuch construction that when the supply of carbid is exhausted the valvewill be moved to closed position in readiness for recharging of thecarbid chamber. r r

A still further object of the invention is to provide a carbid valvethat is automatically controlled by the pressure of gas generated, themechanism being so arranged that when the gasometer or other gascontainer falls below a predetermined point, the valve mechanism will bedisconnected and the valve automatically closed.

With these and other objects in view, as will more fully hereinafter apear, the invention consists incertain nove features of construction andarrangement of parts, [hereinafter fully described, illustrated intheaccompanying drawings, and particularly pointed out in the appendedclaims, it being understood that various changes in the form,proportions, size and minor details of the structure may be madewithoutdepartin'g from the s irit' or sacrificing any of the advantageso the invention. 3

In the accompanying drawings :Figure1 is a sectional elevation ofaportion of an acetylene gas generating apparatus provided with a carbidvalve mechanism arranged and constructed in accordance withtheinvention.

Fig. 2 is a detail view of a portion of the valve operating mechanismpartly in section. Fig. 3 is a sectional plan view through a portion ofthe lever supporting standard and disks. Figs. 4 and 5 are detailperspective views of the disks detached. Fig. 6 is a sectional elevationillustrating a modified form of valve. I I j Similar numerals of,-referencew are employed to indicate [corresponding (parts rawings.

passing from the generator to carbid chamber 15 that is The generatingtank 10 and the gasome'ter 11 may be of any ordinary construction, andarranged in any convenient manner, the gas the gaso'meter, and the riseand fall of the latter controlling the position of the carbid feedvalve.

Arranged above the generating tank is a supported by a frusto-conicalcasing 16. The bottom of the carbid chamber is tapered toward adischarge opening 17, and the tapered wall of the opening forms a seatfor a valve 18. Below the discharge opening is a second valve 19 that isarranged to close against a tapered valve seat 20, the latter acting todirect the falling carbid through a discharge passage 21 into thegenerating tank.

The two valves are carried by a vertically movable stem 22 that extendsthrough a stufiing box 23 at the top of the carbid chamber. The lowerportion of the'stem is uided by a deflecting hood 24that is carried bythe lower portion of the wall of the carbid chamber and serves tosupport the main weight of the carbid in order to permit free movementof the valve.

Secured to and projecting from the top of the carbid chamber is avertical standard 30 having a vertically extended slot 31 of irregularcontour, there being a projection 32 ex tending inward from one wall ofthe slot andv forming at the top a rounded seat 33for the receptionof afulcrum pin 34'. The bottom of the projection is arran ed on a curvedline struck from the axis of t e pivot 34,. and at the base of theprojection is asecond seat 35 for the reception of a second fulcrum pin36 which comes into play when the mechanism is to be disconnected afterthe supply of carbid is exhausted.

The two pins 34 and 36 serve as connections for two disks 38 and 39 theends ofthe pins being upset or being in theform of bolts and providedwith suitable nuts in order that the disks may be firmly clampedtogether. The inner face of the disk 38 is provided; with adiametrically extending recess for the reception of a lever 40, whilethe inner face of the disk 39 is recessed to receive the standard 30.From the inner face of the disk 39 project lugs 41, which bear againstthe side of thelever 40, and the inner face of the disk 38, the lugsserving to hold the lever firmly within the recess of the disk.

Thelonger arm of the lever is connected by a link 43 to the top of thegasometer or other member that is movable under the pressure of gasgenerated in the tank 10. The shorter arm of the lever is connected by alink 44 to the upper end of the valve stem 22, and at the extreme end ofthe shorter arm of the lever is hung a weight 45 that assists the.closing movement of the valve.

During the ordinary operation of the parts, the upward movement of thegasometer will cause the lever to rock on the pin 34, and the valve stem22 will be forced downward, this movement being assisted by the weight45, and the two valves 18 and 19 will be moved against their respectiveseats 17 and 20, thus cutting off the flow of carbid in the generatingtank.

As the supply of gas in the gasometer is consumed, the bell of thegasometer will descend and the longer arm of the lever will be turneddown, thus raising the valve stem 22 and moving the two valves 18 and 19to open position, so that a fresh charge of carbid may flow into thegenerating tank.

When the supply in the chamber 15 is wholly exhausted and no more gas isgenerated, the gasometer bell moves down below its normal limit, and thevalve stem will be raised, the lever rocking on the pin 34. This raisesthe valves to open position, but as the downward movement of the bellcontinues, the pin 36 will move to engage the seat 35 and the fulcrumpoint of the lever will thus be shifted. The pin 34 will now be forcedoutward from the seat 33 until it arrives at the outer face of theprojection 32, and then the lever and the disks will fall moving thevalves to closed position in readiness for re charging of the carbidchamber, and it is nec essary that these parts be reset by hand beforethe apparatus can be again operated.

In order to insure positive closing of the valve in case the latterfails to move to the closed position, the shorter arm of the lever 40 isconnected to the' carbid chamber or other fixed member, by means of achain or link 50 which will allow considerable play of the lever beforeforming a working connec tion between the carbid chamber and lever. If,however, the valve should fail to move to this closed position bygravity and the gasometer continues its downward movement,

the chain will become taut and the valve stem will be forced downpositively, thus moving both valves to closed position and preventingthe further passage of carbid.

' In the construction shown in Fig. 6, an auxiliary weight 51 isemployed, in place of the lowermost valve, this weight being frustoconical in form, so that it will act as a distributer and scatter thecarbid over a wide carbid valve, a gasometer, connections between thegasometer and valve, said connections including a pivotally mountedlever,

the by exand means for automatically unscating lever and allowing thevalve to close gravity when the supply of carbid is hausted.

2. In apparatus of the class described, a carbid valve, a gasometer, apivotally mounted lever forming a connection. between the gasometer andthe valve, and means operable on excessive downward movement of thegasometer for unseatingl the lever and allowing the valve to close.

3. In apparatus of the class described, a carbid valve, a verticallyslotted standard shaped to form a pair of seats or fulcrums, a lever, adisk carried thereby, a pair of pivot pins extending from the lever anddisk and arranged to engage such seats or fulcrums, a connection betweenthe lever and valve, and a gasometer for actuating said lever.

4. In apparatus of the class described, a generating tank, a carbidchamber arranged. above the same, a carbid valve, a stem carrying thesame, a vertically slotted standard arranged above the carbid chamberand provided with a projection forming a pair of upper and lowerfulcrums, a gasometer, a lever connected to the gasometer, and the valvestem, a pair of disks, one of which is slotted 9 to receive the leverand the other slotted to receive the standard, and a pair of pinsextending through the disks and arranged to engage said fulcrums,substantially as specified.

5. In apparatus of the class described, a generating chamber, agasometer, a carbid chamber, a pair of superposed valve seats betweenthe carbid chamber and the generating chamber, a pair of valves arrangedto close against the said seats, a stem carrying the valves, a standardarranged at the top of the carbid chamber and provided with a verticallyarranged irregular slot, a projection forming a partof the wall of theslot and provided with a pair of seats or fulcrums, a lever, means forconnecting the lever to the valve stem, means for connecting the leverto the gasometer, a weight hung on one end of the lever to move thevalves to closed position, a pair of disks, one of which is slotted toreceive the lever, and the other recessed to receive the standard, and apair of pins extending through the disks and arranged to seat againstsaid fulcrum.

' 6. In apparatus of the class described, a carbid valve, an operatinglever having a shiftable fulcrum, means for connecting said lever to thevalve, a gasometer connection for the lever, and a normally inoperativemember forming an auxiliary fulcrum for said lever to ermit the closingof the valve on abnormal escent of the gasometer.

7. In apparatus of the class described, a carbid valve, a gasometer, alever forming a In testimony that I claim the foregoing as my own, Ihave hereto aflixed my signature in the presence of two witnesses.

. ALEXANDER WYTHE HANGER.

Witnesses:

H. H. KERR, JOHN CRosBY.

